for the sibling: i was thinking it would be his biological sibling who a wealthy family who couldn't have kids adopted together. they would be spanish because their adoptive mom is spanish and she pushed hard to get two spanish kids, so she could teach them the language buuuut that's about the extent of their spanish lifestyle since they were raised in an affluent neighborhood and went to private school and all that. if that doesn't work out, another adopted sibling in general would be great not necessarily from spain and for the assistant it would basically be an extension of himself ๐he's one of those zany tech guys with a hot company and lots of money to blow but he's not the best with organization so she would really always be there, his right hand woman type of deal, getting his shit together but also fielding the very very weird demands at all hours of the day (sometimes he asks for things just to drive her a little bit nuts, tbh) BUT even though he can be like that he would be veryyyy generous with gifts from time to time, from designer handbags to best restaurant reservations, so it's kind if a funny little relationship they have with lots of ups and downs!